The Break-even Point Analysis of Electronic Ballast Application for Residence

Abstract

The purpose of this research is the analysis whether the break-even point, the point which the moneysaved equal the investment at 36 months (or 60 months), could be possible when using the saving energyproduct, electronic ballast in residence, category 1 electric consumer. The most important step of thisanalysis was the experiment in laboratory to measure the luminairest input power. The 1x18 W and 1x32 Wfluorescent luminaires which have been extensively used in general residence were chosen to be the studytssubject. The other important data such as the category 1 electricity charge rate and the interest rate (MARR)for opportunity-cost calculation etc. were collected from surveying. The final step, the payback periods wereanalyzed by instructions on Microsoft Excel worksheets. The analysis has 2 main independent variables,the electronic ballastts price and using rate per day which change the dependent variable payback period tothe break-even point. At this point, It showed the answer of this research, the value of the electronic ballasttsprice and using rate per day made the break-even point. Some details of this answer showed : the using of1x18 W 5 years guarantee period type in category 1.2 electric consumer, the break-even point can be madeat using rate per day not more than 5.52 hours. In case of the electronic ballast price, when the using rate perday is higher, the break-even point can be made at the higher price of electronic ballast. For example, at4 hours per day of using rate, the break-even point could possibly be not more than 189 Baht, when the usingrate is 5 hours per day, the break-even point could possibly be up to 240 baht.